Windows Printer & Printing Subsystem problems

When the usual printer troubleshooting techniques do not solve Windows printer problems, such as inability to install or uninstall a printer, or other stubborn printer issues, there may be problems with the printing subsystem in Windows. Microsoft has some automated diagnostic utilities that may help.

Note: When downloading a diagnostic file, you may wish to right-click and save it for repeated use.

Find and fix problems with devices and hardware (filename: DeviceDiagnostic.diagcab)

Find and fix problems with printing (filename: Printerdiagnostic10.diagcab) <-- May be Windows 10 only

If there is a local port with the same name as a virtual printer port (e.g. USB001), this will cause problems when trying to get a USB printer to work. The local port should be deleted. Do not manually create any local port in an attempt to get a Wasp printer working.